Download 03002, 03101, and 03301 R.M Young Wind

USER MANUAL
03002, 03101 and 03301
R.M. Young
Wind Sentry Sensors
4
Issued: 15.6.15
Iss
Copyright © 1986-2015 Campbell Scientific, Inc.
Printed under licence by Campbell Scientific Ltd.
CSL 830
Guarantee
This equipment is guaranteed against defects in materials and workmanship.
This guarantee applies for 24 months from date of delivery. We will repair or
replace products which prove to be defective during the guarantee period
provided they are returned to us prepaid. The guarantee will not apply to:

Equipment which has been modified or altered in any way without the
written permission of Campbell Scientific

Batteries

Any product which has been subjected to misuse, neglect, acts of God or
damage in transit.
Campbell Scientific will return guaranteed equipment by surface carrier
prepaid. Campbell Scientific will not reimburse the claimant for costs incurred
in removing and/or reinstalling equipment. This guarantee and the Company’s
obligation thereunder is in lieu of all other guarantees, expressed or implied,
including those of suitability and fitness for a particular purpose. Campbell
Scientific is not liable for consequential damage.
Please inform us before returning equipment and obtain a Repair Reference
Number whether the repair is under guarantee or not. Please state the faults as
clearly as possible, and if the product is out of the guarantee period it should
be accompanied by a purchase order. Quotations for repairs can be given on
request. It is the policy of Campbell Scientific to protect the health of its
employees and provide a safe working environment, in support of this policy a
“Declaration of Hazardous Material and Decontamination” form will be
issued for completion.
When returning equipment, the Repair Reference Number must be clearly
marked on the outside of the package. Complete the “Declaration of
Hazardous Material and Decontamination” form and ensure a completed copy
is returned with your goods. Please note your Repair may not be processed if
you do not include a copy of this form and Campbell Scientific Ltd reserves
the right to return goods at the customers’ expense.
Note that goods sent air freight are subject to Customs clearance fees which
Campbell Scientific will charge to customers. In many cases, these charges are
greater than the cost of the repair.
Campbell Scientific Ltd,
80 Hathern Road,
Shepshed, Loughborough, LE12 9GX, UK
Tel: +44 (0) 1509 601141
Fax: +44 (0) 1509 601091
Email: [email protected]
www.campbellsci.co.uk
PLEASE READ FIRST
About this manual
Please note that this manual was originally produced by Campbell Scientific Inc. primarily for the North
American market. Some spellings, weights and measures may reflect this origin.
Some useful conversion factors:
Area: 1 in2 (square inch) = 645 mm2
Length:
Mass:
1 in. (inch) = 25.4 mm
1 ft (foot) = 304.8 mm
1 yard = 0.914 m
1 mile = 1.609 km
1 lb (pound weight) = 0.454 kg
Pressure:
1 psi (lb/in2) = 68.95 mb
Volume:
1 UK pint = 568.3 ml
1 UK gallon = 4.546 litres
1 US gallon = 3.785 litres
1 oz. (ounce) = 28.35 g
In addition, while most of the information in the manual is correct for all countries, certain information
is specific to the North American market and so may not be applicable to European users.
Differences include the U.S standard external power supply details where some information (for
example the AC transformer input voltage) will not be applicable for British/European use. Please note,
however, that when a power supply adapter is ordered it will be suitable for use in your country.
Reference to some radio transmitters, digital cell phones and aerials may also not be applicable
according to your locality.
Some brackets, shields and enclosure options, including wiring, are not sold as standard items in the
European market; in some cases alternatives are offered. Details of the alternatives will be covered in
separate manuals.
Part numbers prefixed with a “#” symbol are special order parts for use with non-EU variants or for
special installations. Please quote the full part number with the # when ordering.
Recycling information
At the end of this product’s life it should not be put in commercial or domestic refuse but
sent for recycling. Any batteries contained within the product or used during the
products life should be removed from the product and also be sent to an appropriate
recycling facility.
Campbell Scientific Ltd can advise on the recycling of the equipment and in some cases
arrange collection and the correct disposal of it, although charges may apply for some
items or territories.
For further advice or support, please contact Campbell Scientific Ltd, or your local agent.
Campbell Scientific Ltd, 80 Hathern Road, Shepshed, Loughborough, LE12 9GX, UK
Tel: +44 (0) 1509 601141 Fax: +44 (0) 1509 601091
Email: [email protected]
www.campbellsci.co.uk
Precautions
DANGER — MANY HAZARDS ARE ASSOCIATED WITH INSTALLING, USING, MAINTAINING, AND WORKING ON
OR AROUND TRIPODS, TOWERS, AND ANY ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS,
CROSSARMS, ENCLOSURES, ANTENNAS, ETC. FAILURE TO PROPERLY AND COMPLETELY ASSEMBLE,
INSTALL, OPERATE, USE, AND MAINTAIN TRIPODS, TOWERS, AND ATTACHMENTS, AND FAILURE TO HEED
WARNINGS, INCREASES THE RISK OF DEATH, ACCIDENT, SERIOUS INJURY, PROPERTY DAMAGE, AND
PRODUCT FAILURE. TAKE ALL REASONABLE PRECAUTIONS TO AVOID THESE HAZARDS. CHECK WITH YOUR
ORGANIZATION'S SAFETY COORDINATOR (OR POLICY) FOR PROCEDURES AND REQUIRED PROTECTIVE
EQUIPMENT PRIOR TO PERFORMING ANY WORK.
Use tripods, towers, and attachments to tripods and towers only for purposes for which they are designed. Do not
exceed design limits. Be familiar and comply with all instructions provided in product manuals. Manuals are
available at www.campbellsci.eu or by telephoning +44(0) 1509 828 888 (UK). You are responsible for conformance
with governing codes and regulations, including safety regulations, and the integrity and location of structures or land
to which towers, tripods, and any attachments are attached. Installation sites should be evaluated and approved by a
qualified engineer. If questions or concerns arise regarding installation, use, or maintenance of tripods, towers,
attachments, or electrical connections, consult with a licensed and qualified engineer or electrician.
General
• Prior to performing site or installation work, obtain required approvals and permits. Comply with all
governing structure-height regulations, such as those of the FAA in the USA.
• Use only qualified personnel for installation, use, and maintenance of tripods and towers, and any
attachments to tripods and towers. The use of licensed and qualified contractors is highly recommended.
• Read all applicable instructions carefully and understand procedures thoroughly before beginning work.
• Wear a hardhat and eye protection, and take other appropriate safety precautions while working on or
around tripods and towers.
• Do not climb tripods or towers at any time, and prohibit climbing by other persons. Take reasonable
precautions to secure tripod and tower sites from trespassers.
• Use only manufacturer recommended parts, materials, and tools.
Utility and Electrical
• You can be killed or sustain serious bodily injury if the tripod, tower, or attachments you are installing,
constructing, using, or maintaining, or a tool, stake, or anchor, come in contact with overhead or
underground utility lines.
• Maintain a distance of at least one-and-one-half times structure height, or 20 feet, or the distance
required by applicable law, whichever is greater, between overhead utility lines and the structure (tripod,
tower, attachments, or tools).
• Prior to performing site or installation work, inform all utility companies and have all underground utilities
marked.
• Comply with all electrical codes. Electrical equipment and related grounding devices should be installed
by a licensed and qualified electrician.
Elevated Work and Weather
• Exercise extreme caution when performing elevated work.
• Use appropriate equipment and safety practices.
• During installation and maintenance, keep tower and tripod sites clear of un-trained or non-essential
personnel. Take precautions to prevent elevated tools and objects from dropping.
• Do not perform any work in inclement weather, including wind, rain, snow, lightning, etc.
Maintenance
• Periodically (at least yearly) check for wear and damage, including corrosion, stress cracks, frayed cables,
loose cable clamps, cable tightness, etc. and take necessary corrective actions.
• Periodically (at least yearly) check electrical ground connections.
WHILE EVERY ATTEMPT IS MADE TO EMBODY THE HIGHEST DEGREE OF SAFETY IN ALL CAMPBELL
SCIENTIFIC PRODUCTS, THE CUSTOMER ASSUMES ALL RISK FROM ANY INJURY RESULTING FROM IMPROPER
INSTALLATION, USE, OR MAINTENANCE OF TRIPODS, TOWERS, OR ATTACHMENTS TO TRIPODS AND TOWERS
SUCH AS SENSORS, CROSSARMS, ENCLOSURES, ANTENNAS, ETC.
Contents
PDF viewers: These page numbers refer to the printed version of this document. Use the
PDF reader bookmarks tab for links to specific sections.
1. Introduction ................................................................ 1
2. Cautionary Statements .............................................. 1
3. Initial Inspection ........................................................ 1
3.1
Ships With List .................................................................................... 2
4. Quickstart ................................................................... 2
4.1
4.2
Step 1 — Mount the Sensor ................................................................. 2
Step 2 — Use SCWin Short Cut to Program Datalogger and Generate
Wiring Diagram ................................................................................ 5
5. Overview ..................................................................... 7
6. Specifications ............................................................ 8
6.1
6.2
6.3
Wind Speed (Anemometer).................................................................. 9
Wind Direction (Vane) ......................................................................... 9
Wind Sentry Assembly ........................................................................ 9
7. Installation .................................................................. 9
7.1
7.2
Siting .................................................................................................... 9
Assembly and Mounting .................................................................... 10
7.2.1 03002 Wind Sentry Set ............................................................... 10
7.2.2 03101 Anemometer ..................................................................... 10
7.2.3 03301 Vane ................................................................................. 11
7.3
Wiring ................................................................................................ 11
7.4
Programming...................................................................................... 12
7.4.1 Wind Speed ................................................................................. 13
7.4.2 Wind Direction ........................................................................... 13
7.4.3 Wind Vector Processing Instruction ........................................... 14
7.4.4 Long Lead Lengths ..................................................................... 14
8. Sensor Maintenance ................................................ 14
9. Troubleshooting ...................................................... 15
9.1
9.2
Wind Direction................................................................................... 15
Wind Speed ........................................................................................ 15
10. References ............................................................... 15
Appendix A. Importing Short Cut Code ................... A-1
A.1
Importing Short Cut Code into a Program Editor ........................... A-1
Appendix B. Example Programs .............................. B-1
i
Appendix C. Setting the Wind Direction Sensor to True
North
.............................................................. C-1
C.1
C.2
C.3
Magnetic Declination ....................................................................... C-1
Determining True North ................................................................... C-1
Setting Up the Wind Direction Sensor on the Basic Weather StationC-2
Appendix D. Wind Direction Measurement Theory . D-1
D.1
BRHalf Instruction ...........................................................................D-1
4-1.
CM200-Series Crossarm with CM220 Right Angle Mounting
Bracket .............................................................................................. 3
03002 mounted to CM200-Series Crossarm with CM220 ................... 4
03002 mounted to a crossarm with pn #17953 .................................... 4
The CM216 allows an 03002 or 03101 to mount atop the mast of
a CM110, CM115, or CM120 tripod .............................................. 10
03101 mounted to a crossarm via a #1049 NU-RAIL........................ 11
Magnetic Declination ....................................................................... C-1
Determining True North and Sensor Orientation ............................. C-1
Setting up the Wind Direction Sensor on the Basic Weather StationC-2
03002 and 03301 potentiometer in a half bridge circuit ..................D-1
Figures
4-2.
4-3.
7-1.
7-2.
C-1.
C-2.
C-3.
D-1.
Tables
7-1.
7-2.
7-3.
7-4.
B-1.
03002-L Wiring ................................................................................. 11
03101 and 03301 Wiring ................................................................... 12
Wind Speed Multiplier (With Pulse Channel Configuration Set
to Low Level AC, Output “Hz”) .................................................... 13
Parameters for Wind Direction .......................................................... 14
Wiring for Example Programs using the 03002-L ........................... B-1
ii
R.M. Young Wind Sentry
1.
Introduction
The 03002 Wind Sentry Set measures both wind speed and direction. It consists of
a 3-cup anemometer and a wind vane mounted on a small crossarm. The
anemometer (03101) and vane (03301) may be purchased separately to special
order.
NOTE
2.
3.
This manual provides information only for CRBasic dataloggers. It is
also compatible with the most of our retired Edlog dataloggers. For
Edlog datalogger support, see an older manual at
www.campbellsci.com/old-manuals or contact a Campbell Scientific
application engineer for assistance.
Cautionary Statements

READ AND UNDERSTAND the Precautions section at the front of this
manual.

The 03002 is a precision instrument. Please handle it with care.

If the 03002 is to be installed at heights over 6 feet, be familiar with tower
safety and follow safe tower climbing procedures.

Danger — Use extreme care when working near overhead electrical wires.
Check for overhead wires before mounting the 03002 or before raising a tower.

The black outer jacket of the cable is Santoprene® rubber. This compound was
chosen for its resistance to temperature extremes, moisture, and UV
degradation. However, this jacket will support combustion in air. It is rated as
slow burning when tested according to U.L. 94 H.B. and will pass FMVSS302.
Local fire codes may preclude its use inside buildings.
Initial Inspection

Upon receipt of the 03002, inspect the packaging and contents for damage. File
damage claims with the shipping company. Immediately check package
contents against the shipping documentation (see Section 3.1, Ships With List).
Contact Campbell Scientific about any discrepancies.

The model number and cable length are printed on a label at the connection end
of the cable. Check this information against the shipping documents to ensure
the expected product and cable length are received.
1
R.M. Young Wind Sentry
3.1
Ships With List
The 03002 Wind Sentry ships with:
(1) 03002 Wind Sentry including
03102 anemometer
03302 vane
crossarm
band clamp (pn #4919)
(1) 1 inch IPS, 12 inch long, unthreaded aluminium pipe (pn 006766)
(1) Allen wrench (pn #5201)
The 03101 anemometer ships with:
(1) 03101 anemometer
(1) 3/4 inch IPS, 10 inch long, threaded aluminium pipe (pn #7623)
(1) Allen wrench (pn #5201)
The 03301 vane ships with:
(1) 03301 vane
(1) 3/4 inch IPS, 10 inch long threaded aluminium pipe (pn #7623); this assumes
mounting option –P.
(1) Allen wrench (pn #5201)
4.
Quickstart
4.1
Step 1—Mount the Sensor
This quick start is for the 03002 wind set. Refer to Section 7, Installation, if
installing just the 03101 anemometer or 03301 vane. Section 7, Installation, also
provides siting information.
Tools required:








5/64 inch Allen wrench
Allen wrench provided with sensor
1/2 inch open end wrench
compass and declination angle for the site (see Appendix C)
small screw driver provided with datalogger
UV resistant cable ties
small pair of diagonal-cutting pliers
6 inch to 10 inch torpedo level
Install the 03002 using:



2
Standard 1.0-in. IPS schedule 40 pipe (pn 006766)
CM220 Right-Angle Mounting Kit (Figure 4-1 and Figure 4-2), or
009285 1 x 1 inch NU-RAIL Crossover Fitting (Figure 4-3)
User Manual
1.
Install the cup wheel to the anemometer shaft using the Allen wrench provided
with the sensor.
2.
Mount the crossarm to the tripod or tower.
3.
Orient the crossarm North-South, with the CM220 mount or 008285 NU-RAIL
on the north end. Appendix C contains detailed information on determining
True North using a compass and the magnetic declination for the site.
4.
Secure the 12 in. aluminium pipe to the CM220 mount or 008285 NU-RAIL.
The 006766 aluminium pipe is shipped with the 03002.
5.
Place the 03002 on the pipe, and orient the sensor crossarm North-South with
the vane to the North.
6.
Tighten the mounting post band clamp. Final sensor orientation is done after
the datalogger has been programmed to measure wind direction as described in
Appendix C.
7.
Route the sensor cable along the underside of the crossarm to the tripod or
tower, and to the instrument enclosure.
8.
Secure the cable to the crossarm and tripod or tower using cable ties.
CM220
CM200-Series Crossarm
Figure 4-1. CM200-Series Crossarm with CM220 Right Angle Mounting
Bracket
3
R.M. Young Wind Sentry
Aluminium Pipe
CM220
CM200-Series Crossarm
Figure 4-2. 03002 mounted to CM200-Series Crossarm with CM220
Aluminium Pipe
pn #17953 NU-RAIL
Cable Tie
CM200-Series Crossarm
Figure 4-3. 03002 mounted to a crossarm with pn #17953
4
User Manual
4.2
Step 2 — Use SCWin Short Cut to Program Datalogger and
Generate Wiring Diagram
The simplest method for programming the datalogger to measure the 034B is to
Short Cut is an easy way to program your datalogger to measure the 014A and
assign datalogger wiring terminals. The following procedure shows using Short Cut
to program the 014A.
9.
Install Short Cut by clicking on the install file icon. Get the install file
from either www.campbellsci.com, the ResourceDVD, or find it in
installations of LoggerNet, PC200W, PC400, or RTDAQ software.
10. The Short Cut installation should place a shortcut icon on the desktop of
your computer. To open Short Cut, click on this icon.
11. When Short Cut opens, select New Program.
5
R.M. Young Wind Sentry
12. Select Datalogger Model and Scan Interval (default of 5 seconds is OK
for most applications). Click Next.
13. Under the Available Sensors and Devices list, select the Sensors |
Meteorological | Wind Speed & Direction folder. Select 03002 Wind
Speed & Direction Sensor. Click
to move the selection to the
Selected device window. The wind speed defaults to metres/second. This
can be changed by clicking the Wind Speed box and selecting one of the
other options.
6
User Manual
14. After selecting the sensor, click at the left of the screen on Wiring Diagram to
see how the sensor is to be wired to the datalogger. The wiring diagram can be
printed out now or after more sensors are added.
15. Select any other sensors you have, then finish the remaining Short Cut
steps to complete the program. The remaining steps are outlined in Short
Cut Help, which is accessed by clicking on Help | Contents |
Programming Steps.
16. If LoggerNet, PC400, RTDAQ, or PC200W is running on your PC, and the
PC to datalogger connection is active, you can click Finish in Short Cut
and you will be prompted to send the program just created to the
datalogger.
17. If the sensor is connected to the datalogger, as shown in the wiring diagram
in step 6, check the output of the sensor in the datalogger support software
data display to make sure it is making reasonable measurements.
5.
Overview
The 03002 Wind Sentry Set is used to measure horizontal wind speed and direction.
Wind speed is measured with a three cup anemometer. Rotation of the cup wheel
produces an ac sine wave voltage with frequency proportional to wind speed. This
is a special version of the 03102 built for Campbell Scientific by R.M. Young that
has shielded bearings rather than sealed bearings. The shielded bearings provide a
lower starting threshold than sealed bearings.
Vane position is transmitted by a 10-k potentiometer. With a precision excitation
voltage applied, the output voltage is proportional to wind direction.
The 03101 Anemometer and 03301 Vane can be ordered as separate sensors, which
are also covered in this manual. These two sensors combined differ from the 03002
only by the absence of a junction box. The R.M. Young Instruction Manual
includes additional information on the operating principles, installation, and
maintenance of the sensor.
7
R.M. Young Wind Sentry
NOTE
CAUTION
Do not exceed 304 m (1,000 feet) of cable.
Do not use long lead lengths in electrically noisy environments.
The 03002’s cable can terminate in:
6.

Connector that attaches to a prewired enclosure (option –PW). Refer to
www.campbellsci.com/prewired-enclosures for more information.

Connector that attaches to a CWS900 Wireless Sensor Interface (option –
CWS). The CWS900 allows the 03002 to be used in a wireless sensor
network. Refer to www.campbellsci.com/cws900 for more information.
Specifications
Features:
 Designed for continuous, long term, unattended operation in adverse
conditions
 Small size, simplicity, and rugged construction provide a quality
instrument for a modest price
 Ideal for wind profile studies
 Compatible with the LLAC4 4-channel Low Level AC Conversion
Module, which increases the number of anemometers one datalogger can
measure
 Campbell Scientific version uses shielded bearings, which lowers the
anemometer’s starting threshold
 Compatible with Campbell Scientific CRBasic dataloggers: CR6,
CR200(X) series, CR800 series, CR1000, CR3000, CR5000, and
CR9000X.
8
User Manual
6.1
Wind Speed (Anemometer)
Range:
Sensor:
Accuracy:
Turning Factor:
Distance Constant
(63% recovery):
Threshold:
Transducer:
Output:
Output Frequency:
Cup Wheel Diameter:
Weight:
6.2
Transducer:
Transducer Excitation
Requirement:
Output:
Vane Length:
Vane Weight:
360° mechanical, 352° electrical (8° open)
Balanced vane, 16 cm turning radius
±5°
0.2
0.5 m (1.6 ft)
0.8 m s–1 (1.8 mph) at 10° displacement
(1.8 m s–1 (4 mph) at 5° displacement)
Precision conductive plastic potentiometer;
10 k resistance; 1.0% linearity; life expectancy 50
million revolutions
Rated 1 W at 40 °C, 0 W at 125 °C
Regulated dc voltage, 15 Vdc max
Analogue dc voltage proportional to wind direction
angle with regulated excitation voltage supplied by the
datalogger
22 cm (8.7 in)
170 g (6 oz)
Wind Sentry Assembly
Operating Temperature:
Overall Height:
Crossarm Length:
Mounting Diameter:
7.
2.3 m (7.5 ft)
0.5 m s–1 (1.1 mph)
Stationary coil, 1300 ohm nominal resistance
AC sine wave signal induced by rotating magnet on cup
wheel shaft
100 mV peak-to-peak at 60 rpm; 6 V peak-to-peak at
3600 rpm
1 cycle per cup wheel revolution; 0.75 m s–1 per Hz
12 cm (4.7 in)
113 g (4 oz)
Wind Direction (Vane)
Range:
Sensor:
Accuracy:
Damping Ratio:
Delay Distance
(50% recovery):
Threshold:
6.3
0 to 50 m s–1 (112 mph), gust survival 60 m s–1
(134 mph)
12 cm diameter cup wheel assembly, 40 mm diameter
hemispherical cups
±0.5 m s–1 (1.1 mph)
75 cm (2.5 ft)
–50 to 50 °C assuming non-riming conditions
32 cm (12.6 in)
40 cm (15.7 in) between instruments (centre-to-centre)
34 mm (1.34 in), mounts on standard 1 in. IPS pipe
Installation
If you are programming your datalogger with Short Cut, skip Section 7.3, Wiring,
and Section 7.4, Programming. Short Cut does this work for you. See Section 4,
Quickstart, for a Short Cut tutorial.
7.1
Siting
Locate wind sensors away from obstructions (e.g., trees and buildings). As a
general rule of thumb, there should be a horizontal distance of at least ten times the
height of the obstruction between the wind set and the obstruction. If it is necessary
9
R.M. Young Wind Sentry
to mount the sensors on the roof of a building, the height of the sensors above the
roof, should be at least 1.5 times the height of the building. See Section 10,
References, for a list of references that discuss siting wind speed and direction
sensors.
7.2
Assembly and Mounting
7.2.1 03002 Wind Sentry Set
The 03002 mounts to a standard 1.0 in. IPS schedule 40 pipe (1.34 in. O.D.). A 12”
long mounting pipe ships with the 03002. The mounting pipe typically fastens to a
CM200-series crossarm via the CM220 mount or 17953 NU-RAIL fitting. Section
4, Quickstart, describes mounting the 03002 using a CM220 mount or a 17953 NURAIL fitting. The 03002 can also be mounted at the top of a CM106B, CM110,
CM115, or CM120 tripod with the CM216 (see Figure 7-1). The CM216 extends
10 cm (4 in) above the mast of the tripod.
Fits in Mast
Figure 7-1. The CM216 allows an 03002 or 03101 to mount atop the mast
of a CM110, CM115, or CM120 tripod
7.2.2 03101 Anemometer
The 03101 is mounted to a tripod or tower using the tools listed in the beginning of
Section 4.1, Step 1—Mount the Sensor.
10
1.
Install the cup wheel to the anemometer shaft using the Allen wrench
provided with the sensor.
2.
Mount the crossarm to the tripod or tower, or mount the CM216 atop a
CM106B, CM110, CM115, or CM120 tripod.
3.
Secure the 3/4 inch IPS, 10 inch long, threaded aluminium pipe (pn #7623)
to the CM220 mount (see Figure 4-1 in Quickstart), 1049 NU-RAIL
(Figure 7-2), or CM216 (see Figure 7-1).
4.
Place the 03101 on the pipe.
5.
Route the sensor cable to the instrument enclosure. If using a crossarm the
cable should be routed along the underside of the crossarm.
6.
Secure the cable to the crossarm and tripod or tower using cable ties.
User Manual
Cable Tie
Crossarm
#1049 NU-RAIL Fitting
Figure 7-2. 03101 mounted to a crossarm via a #1049 NU-RAIL
7.2.3 03301 Vane
The 03301 wind vane has three mounting options
7.3

No Mounting (option –NM) is used when the 03301 will be replacing an
existing 03301 within a Wind Sentry Set.

Pipe Offset Mount (option –P) is used when the 03301 will be deployed on
its own next to an anemometer that already has its own mount. With this
option, the 03301 mounts to a crossarm using the CM220 mount or #1049
NU-RAIL fitting.

03101 Conversion Kit (option –SM) is used when the 03301 will be
mounted next to a previously purchased 03101 Anemometer (Wind Sentry
Anemometer). This conversion kit includes the crossarm and other
hardware to mount both sensors to a common crossarm as if they had been
purchased originally as a complete Wind Sentry Set.
Wiring
Connections to CRBasic dataloggers are given in Table 7-1 and Table 7-2. To wire
an Edlog datalogger, see an older manual at www.campbellsci.com/old-manuals, or
contact a Campbell Scientific application engineer for assistance.
Table 7-1. 03002-L Wiring
Colour
Description
CR6
CR800
CR5000
CR3000
CR1000
Red
Wind Spd. Signal
Pulse
Black
Wind Spd. Reference
Clear
Shield
CR200(X)
P_LL
11
R.M. Young Wind Sentry
White
Wind Dir. Reference
Green
Wind Dir. Signal
SE Analogue
SE Analogue
Blue
Wind Dir. Excitation
Excitation
Excitation
Table 7-2. 03101 and 03301 Wiring
Colour
Description
CR6
CR800
CR5000
CR3000
CR1000
Black
Wind Spd. Signal
Pulse
P_LL
White
Wind Spd. Reference
Clear
Wind Spd. Shield
Red
Wind Dir. Signal
SE Analogue
SE Analogue
Black
Wind Dir. Excitation
Excitation
Excitation
White
Wind Dir. Reference
Clear
Wind Dir. Shield
Wind Speed 03101
7.4
CR200(X)
Wind Direction 03301
Programming
Short Cut is the best source for up-to-date datalogger programming code.
Programming code is needed,

when creating a program for a new datalogger installation.

when adding sensors to an existing datalogger program.
If your data acquisition requirements are simple and you are connecting the sensor
to a pulse port, you can probably create and maintain a datalogger program
exclusively with Short Cut. If your data acquisition needs are more complex, the
12
User Manual
files that Short Cut creates are a great source for programming code to start a new
program or add to an existing custom program.
NOTE
Short Cut cannot edit programs after they are imported and edited in
CRBasic Editor.
A Short Cut tutorial is available in Section 0, Step 2 — Use SCWin to Program
Datalogger and Generate Wiring Diagram. If you wish to import Short Cut code
into CRBasic Editor to create or add to a customized program, follow the procedure
in Appendix A.1, Importing Short Cut Code into a Program Editor. Programming
basics for CRBasic dataloggers are provided in the following sections. Complete
program examples for select CRBasic dataloggers can be found in Appendix B,
Example Programs. Programming basics and programming examples for Edlog
dataloggers are provided at www.campbellsci.com/old-manuals.
7.4.1 Wind Speed
Wind speed is measured with the Pulse Count instruction (PulseCount() in
CRBasic. Use the low level AC configuration.
The expression for wind speed (U) is:
U = MX + B
where
M = multiplier
X = number of pulses per second (Hertz)
B = offset
TABLE 7-3 lists the multipliers (M) and offsets (Off) to obtain metres/second or
miles/hour when the Pulse Count instruction is configured to output the result in
hertz.
Table 7-3. Wind Speed Multiplier
(With Pulse Channel Configuration Set to Low Level AC, Output “Hz”)
Model
Metres/Second
Miles/Hour
03002 / 03101
M = 0.750
Off = 0.2
M = 1.677
Off = 0.4
*When the pulse channel configuration is set to Low Level AC, output “counts”, the
multiplier above is divided by the execution interval in seconds.
7.4.2 Wind Direction
The wind vane is coupled to a 10 k potentiometer, which has an 8 degree
electrical dead band between 352 and 360 degrees.
The CR200(X) dataloggers use the ExDelSE() instruction to measure wind
direction. All other CRBasic dataloggers use the BRHalf() instruction.
Excitation voltages, range codes, and multipliers for Campbell Scientific
dataloggers are listed in Table 7-4. Appendix D has additional information on the
BRHalf() measurement instructions.
13
R.M. Young Wind Sentry
Table 7-4. Parameters for Wind Direction
CR200(X)
CR800
CR1000
CR6
CR5000
CR3000
Measurement
Range
2500 mV, slow
2500 mV,60 Hz,
reverse excitation
5000 mV,60 Hz,
reverse excitation
Excitation
Voltage
2500 mV
2500 mV
5000 mV
Multiplier
0.1408
352
352
Offset
0
0
0
7.4.3 Wind Vector Processing Instruction
The Wind Vector output instruction is used to process and store mean wind speed,
unit vector mean wind direction, and standard deviation of the wind direction
(optional) from the measured wind speed and direction values.
7.4.4 Long Lead Lengths
When sensor lead length exceeds 100 feet, the settling time allowed for the
measurement of the vane should be increased to 20 milliseconds.
For the CR200(X), increase the Settling Time parameter of the ExDelSE()
instruction to 20 milliseconds (20,000 microseconds). For the other CRBasic
dataloggers, increase the Settling Time parameter of the BRHalf() instruction to 20
milliseconds (20,000 microseconds).
CAUTION
8.
The 60 Hz rejection option cannot be used with the Half Bridge
instruction, when the delay is not zero. Do not use long lead
lengths in electrically noisy environments.
Sensor Maintenance
Every month do a visual/audio inspection of the anemometer at low wind speeds.
Verify that the cup assembly and wind vane rotate freely. Inspect the sensor for
physical damage.
Replace the anemometer bearings when they become noisy, or the wind speed
threshold increases above an acceptable level. The condition of the bearings can be
checked with a paper clip as described in the R.M. Young manual
The potentiometer has a life expectancy of fifty million revolutions. As it becomes
worn, the element can produce noisy signals or become nonlinear. Replace the
potentiometer when the noise or nonlinearity becomes unacceptable.
Refer to the Assistance page at the beginning of this document for the procedure of
returning the sensor to Campbell Scientific for wind vane and bearing replacement.
14
User Manual
9.
Troubleshooting
9.1
Wind Direction
Symptom: NAN, –9999, or no change in direction
1.
Check that the sensor is wired to the excitation and single-ended channel
specified by the measurement instruction.
2.
Verify that the excitation voltage and range code are correct for the datalogger
type.
3.
Disconnect the sensor from the datalogger and use an ohm meter to check the
potentiometer. Resistance should be about 10 k between the black and white
wires. The resistance between either the black/red or white/red wires for the
03301 and blue/red or white/red for the 03002 should vary from 1 k to 11 k
depending on vane position. Resistance when the vane is in the 8 degree dead
band should be about 1 M.
Symptom: Incorrect wind direction
9.2
1.
Verify that the excitation voltage, range code, multiplier, and offset parameters
are correct for the datalogger type.
2.
Check orientation of sensor as described in Section 4.1, Step 1 — Mount the
Sensor.
Wind Speed
Symptom: No wind speed
1.
Check that the sensor is wired to the pulse channel specified by the pulse count
instruction.
2.
Disconnect the sensor from the datalogger and use an ohm meter to check the
coil. The resistance between the white and black wires for the 03101 and black
and red wires for the 03002 should be a nominal 1300 ohms. Infinite
resistance indicates an open coil; low resistance indicates a shorted coil.
3.
Verify that the configuration code, and multiplier and offset parameters for the
pulse count instruction are correct for the datalogger type.
10. References
The following references give detailed information on siting wind speed and wind
direction sensors.
EPA, 1989: Quality Assurance Handbook for Air Pollution Measurements System,
Office of Research and Development, Research Triangle Park, NC, 27711.
EPA, 1987: On-Site Meteorological Program Guidance for Regulatory Modelling
Applications, EPA-450/4-87-013, Office of Air Quality Planning and Standards,
Research Triangle Park, NC 27711.
The State Climatologist, 1985: Publication of the American Association of State
Climatologists: Height and Exposure Standards, for Sensors on Automated
Weather Stations, vol. 9, No. 4.
15
R.M. Young Wind Sentry
WMO, 1983: Guide to Meteorological Instruments and Methods of Observation,
World Meteorological Organization, No. 8, 5th edition, Geneva, Switzerland.
16
Appendix A. Importing Short Cut Code
This tutorial shows:


How to import a Short Cut program into a program editor for additional
refinement.
How to import a wiring diagram from Short Cut into the comments of a
custom program.
A.1 Importing Short Cut Code into a Program Editor
Short Cut creates files that can be imported into CRBasic Editor program editor.
These files normally reside in the C:\campbellsci\SCWin folder and have the
following extensions:







.DEF (wiring and memory usage information)
.CR6 (CR6 datalogger code)
.CR2 (CR200(X) datalogger code)
.CR1 (CR1000 datalogger code)
.CR8 (CR800 datalogger code)
.CR3 (CR3000 datalogger code)
.CR9 (CR9000(X) datalogger code)
Use the following procedure to import Short Cut code into CRBasic Editor (CR6,
CR200(X), CR1000, CR800, CR3000, CR5000 CR9000(X) dataloggers).
NOTE
1.
Create the Short Cut program following the procedure in Section 4, Quickstart.
Finish the program and exit Short Cut. Make note of the file name used when
saving the Short Cut program.
2.
Open CRBasic Editor.
3.
Click File | Open. Assuming the default paths were used when Short Cut was
installed, navigate to C:\CampbellSci\SCWin folder. The file of interest has a
“.CR6”, “.CR2”, “.CR1”, “.CR8”, “.CR3”, “.CR9”, or “.CR5” extension, for
CR6, CR200(X), CR1000, CR800, CR3000, CR9000(X), or CR5000
dataloggers, respectively. Select the file and click Open.
4.
Immediately save the file in a folder different from \Campbellsci\SCWin, or
save the file with a different file name.
Once the file is edited with CRBasic Editor, Short Cut can no longer
be used to edit the datalogger program. Change the name of the
program file or move it, or Short Cut may overwrite it next time it is
used.
5.
The program can now be edited, saved, and sent to the datalogger.
6.
Import wiring information to the program by opening the associated .DEF file.
Copy and paste the section beginning with heading “-Wiring for CRXXX–”
into the CRBasic program, usually at the head of the file. After pasting, edit
the information such that a ' character (single quotation mark) begins each line.
This character instructs the datalogger compiler to ignore the line when
compiling the datalogger code.
A-1
Appendix A. Importing Short Cut Code
A-2
Appendix B. Example Programs
This CR1000 program measures the 03002 every 5 seconds, and store mean wind
speed, unit vector mean direction, and standard deviation of the direction every 60
minutes. Wiring for the examples is given in Table B-1.
Table B-1. Wiring for Example Programs
Colour
Wire Label
CR1000
CR6
CR200X
P1
U4
P_LL
Red
WS Signal
Black
WS Reference
Clear
Shield
Green
WD Signal
SE 1
U2
SE 1
Blue
WD Volt Excit
VX 1
U1
VX1
White
WD Reference
B.1 Example CR1000 Program
'CR1000
'Declare Variables and Units
Public Batt_Volt
Public WS_ms
Public WindDir
Units Batt_Volt=Volts
Units WS_ms=meters/second
Units WindDir=Degrees
'Define Data Tables
DataTable(Hour,True,-1)
DataInterval(0,60,Min,10)
WindVector (1,WS_ms,WindDir,FP2,False,0,0,0)
FieldNames("WS_ms_S_WVT,WindDir_D1_WVT,WindDir_SD1_WVT")
EndTable
'Main Program
BeginProg
Scan(5,Sec,1,0)
'Default Datalogger Battery Voltage measurement Batt_Volt:
Battery(Batt_Volt)
'03002 or 03101 RM Young Wind Sentry Wind Speed Sensor measurement
'WS_ms:
PulseCount(WS_ms,1,1,1,1,0.75,0.2)
If WS_ms<0.21 Then WS_ms=0
'03002 or 03301 RM Young Wind Sentry Wind Direction Sensor
'measurement - WindDir:
BrHalf(WindDir,1,mV2500,1,1,1,2500,True,20000,_60Hz,352,0)
'Use mV5000 range and 5000 mV excitation for CR3000 and CR5000
'dataloggers.
If WindDir>=360 OR WindDir<0 Then WindDir=0
'Call Data Tables and Store Data
CallTable(Hour)
NextScan
EndProg
B-1
Appendix B. Example Programs
B.2 Example CR200(X) Program
'CR200/CR200X Series
'Declare Variables and Units
Public BattV
Public WS_ms
Public WindDir
Units BattV=Volts
Units WS_ms=meters/second
Units WindDir=degrees
'Define Data Tables
DataTable(Hour,True,-1)
DataInterval(0,60,Min)
WindVector(WS_ms,WindDir,False,0,0)
FieldNames("WS_ms_S_WVT,WindDir_D1_WVT,WindDir_SD1_WVT")
EndTable
'Main Program
BeginProg
'Main Scan
Scan(5,Sec)
'Default Datalogger Battery Voltage measurement 'BattV'
Battery(BattV)
'03002 Wind Speed & Direction Sensor measurements 'WS_ms' and 'WindDir'
'WS_ms
PulseCount(WS_ms,P_LL,1,1,0.75,0.2)
If WS_ms<0.21 Then WS_ms=0
'WindDir
ExDelSE(WindDir,1,1,1,mV2500,20000,0.1408,0)
If WindDir>=360 OR WindDir<0 Then WindDir=0
'Call Data Tables and Store Data
CallTable Hour
NextScan
EndProg
B-2
R.M. Young Wind Sentry
B.3 Example CR6 Program
'CR6 Series
'Declare Variables and Units
Public BattV
Public PTemp_C
Public WS_ms
Public WindDir
Units
Units
Units
Units
BattV=Volts
PTemp_C=Deg C
WS_ms=meters/second
WindDir=degrees
'Define Data Tables
DataTable(Hour,True,-1)
DataInterval(0,60,Min,10)
WindVector(1,WS_ms,WindDir,FP2,False,0,0,0)
FieldNames("WS_ms_S_WVT,WindDir_D1_WVT,WindDir_SD1_WVT")
EndTable
'Main Program
BeginProg
'Main Scan
Scan(5,Sec,1,0)
'Default Datalogger Battery Voltage measurement 'BattV'
Battery(BattV)
'Default Wiring Panel Temperature measurement 'PTemp_C'
PanelTemp(PTemp_C,60)
'03002 Wind Speed & Direction Sensor measurements 'WS_ms' and 'WindDir'
'WS_ms
PulseCount(WS_ms,1,U4,5,1,0.75,0.2)
If WS_ms<0.21 Then WS_ms=0
'WindDir
BrHalf(WindDir,1,mV1000,U2,U1,1,1000,True,20000,60,352,0)
If WindDir>=360 OR WindDir<0 Then WindDir=0
'Call Data Tables and Store Data
CallTable Hour
NextScan
EndProg
B-3
Appendix C. Setting the Wind Direction
Sensor to True North
To get optimum wind direction data from your weather station, it is recommended that you set
up your wind direction sensor with reference to true north (rather than magnetic north). This
Appendix provides advice on how to achieve this.
C.1 Magnetic Declination
Magnetic declination is sometimes referred to as the magnetic variation or the
magnetic compass correction. It is the angle formed between true north and the
projection of the magnetic field vector on the horizontal plane. Magnetic declination
varies according to geographical location. In the UK, for instance, it changes by
over eight degrees from the most Easterly to the most Westerly points. Also, the
magnetic pole tends to wander or drift, so its location can change over time, and so
it is recommended that wind direction measurements are made with reference to
true north.
C.2 Determining True North
The difference between true and magnetic north is easily corrected by adding or
subtracting the difference between the two readings as explained below. Maps are
always drawn in relation to the true north pole, and ordnance survey maps will
normally show the offset or declination angle between true and magnetic north.
To find true north for a specific site do the following:
1. First establish the declination angle (or offset) between magnetic and true north,
usually from an ordnance survey map, as described above.
2. Establish the position of magnetic north accurately, using a good quality
compass.
3. Add (or subtract) the declination angle to find the position of true north for your
site. (In the UK the declination angle from magnetic to true north will always be
to the east, and so will be added to the magnetic north value, as shown in Figure
A-1, below.)
TRUE NORTH (map bearing) 15 EAST OF MAGNETIC NORTH
MAGNETIC NORTH
Point the wind direction sensor
to TRUE NORTH (15) bearing.
NEEDLE POINTS TO MAGNETIC
NORTH
Declination angles for True North to the East of
Magnetic North are added to 0, therefore True
North reading is (0+15 = ) 15 for this specific
case.
Figure C-1 Declination Angles – True North to East of Magnetic North
C-1
Appendix C. Setting the Wind Direction Sensor to True North
TRUE NORTH (map bearing) 15 WEST OF MAGNETIC NORTH
MAGNETIC NORTH
Point the wind direction sensor to
TRUE NORTH (345) bearing.
COMPASS NEEDLE POINTS TO
MAGNETIC NORTH
Declination angles for True North to the West of
Magnetic North are subtracted from 360, therefore
True North reading is (360– 15 = ) 345 for this
specific case.
Figure C-2 Declination Angles – True North to West of Magnetic North
Figure C-3 Magnetic Declination at 2012.5 (degrees relative to true north,
positive is east)
C.3 Setting Up the Wind Direction Sensor on the
Basic Weather Station
Setting up the wind direction sensor for correct orientation is most easily done with
two people – one person to aim and adjust the sensor and a second person to
observe the wind direction readings from the datalogger. Ideally use RS232 Direct
Link to laptop computer to view the readings.
1. Fully install your weather station and establish communications with the
datalogger.
C-2
Appendix C. Setting the Wind Direction Sensor to True North
2. Establish a reference point on the horizon coinciding with True North.
3. Sight down the centre line of the direction sensor and aim its nose cone at this
reference point.
4. Display the value for wind direction using the Monitor Mode of PC200W if
using RS232 Direct Link to a laptop computer to view the reading.
5. Loosen the lower ‘orientation’ fitting band clamp on the Wind Sentry arm so
that it can be rotated by hand. (Do not loosen the upper clamp).
6. While holding the vane in the correct (true north) position at all times, carefully
rotate the bracket until the datalogger indicates 0 degrees. (This procedure will
require some care as the whole sensor body will move with the arm.)
7. Fully re-tighten the band clamp, ensuring that the datalogger reading (0) is
unchanged.
Once set up as described above, the complete Wind Sentry can be removed from the
mount by loosening the upper band clamp only. The spigot in the mounting device
will ensure that it is replaced in the correct orientation.
C-3
Appendix D. Wind Direction
Measurement Theory
It is not necessary to understand the concepts in this section for the general
operation of the 03002 with Campbell Scientific’s datalogger.
Rt
Rs
EXCITATION VOLTAGE (V x)
SIGNAL + (Vs)
AZIMUTH REFERENCE
EARTH GROUND CONNECTION
Figure D-1. 03002 and 03301 potentiometer in a half bridge circuit
D.1 BRHalf Instruction
The BRHalf() instruction outputs a precise excitation voltage (Vx), and measures
the voltage between the wiper and ground (Vs). The resistance between the wiper
and ground, Rs, and Vs varies with wind direction. The measurement result is the
ratio of the measured voltage to the excitation voltage (Vs/Vx). This ratio is related
to the resistance as shown below:
Vs Vx  Rs Rt  Rs 
The maximum value that Rs will reach is Rf, just before it crosses over from the
west side of north to the east side of north (at this point Rt = 0). Vs / Vx reaches its
maximum value of 1.0 mV/mV at 352 degrees. The multiplier to convert V s/Vx to
degrees is 352 degrees / 1.0 Vs/Vx = 352. See Section 4.3 in the CR1000 manual or
Section 3.5 in the CR3000 manual for more information on the bridge
measurements.
D-1
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